Waukesha County, WI property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Waukesha County is 1.21%, below the Wisconsin median of 1.51% and above the national median of 0.98%. The median homeowner pays $4,525 a year on a home worth $373,600.
- Effective rate
- 1.21%
- Median annual bill
- $4,525
- Median home value
- $373,600
- Rank in Wisconsin
- 61of 72
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $2,420 | $202 |
| $300,000 | $3,630 | $303 |
| $400,000 | $4,840 | $403 |
| $500,000 | $6,050 | $504 |
| $750,000 | $9,075 | $756 |
| $1,000,000 | $12,100 | $1,008 |
Waukesha County compared with Wisconsin and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Waukesha County | 1.21% | $4,525 | $373,600 |
| Wisconsin median | 1.51% | $3,746 | $247,400 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in Waukesha County, WI?
The median effective property tax rate in Waukesha County is 1.21% of home value, below the Wisconsin median of 1.51% and above the national median of 0.98%. The median homeowner pays $4,525 a year on a median home value of $373,600 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Waukesha County?
About $4,840 per year at the county's median effective rate of 1.21%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does Waukesha County compare with the rest of Wisconsin?
Waukesha County ranks 61 of 72 Wisconsin counties by effective rate. The Wisconsin median is 1.51% and the median bill is $3,746.